re: Dallisgrass help

Msma if u have Bermuda grass, b/c it's the only grass it wont kill.

Round up if you dont have bermuda.

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Now that dallis grass is dead what should I do next? Do I have to dig up and put sod patches down?

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That is one option if you have larger dead areas of Dallisgrass and/or if if it’s numerous smaller areas, perhaps remove the dead Dallisgrass grass clumps, fill those areas in with sand, and let the centipede stolons from the surrounding areas fill those areas in. It take longer to fill in with centipede, compared to St Augustine or Bermudagrass, but it should do so in 2 or 3 months.

I'm trying to level a few places in my lawn..

Here in NOLA, Delta Sod sells river sand with the following description:

"Pumped river sand can be used to fill and grade everything from your commercial job site to your own backyard. Our pumped river sand comes directly from the Mississippi River by way of dredge barge and it should not be confused with material known as spillway dirt which is more likely to contain seeds, bulbs or bits of rhizomes of weeds, such as Nutsedge, Dollarweed and Torpedograss."


I've heard that Masonry sand is the way to go though and that river sand has weeds. What do i need to know about buying sand?

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Here in NOLA, Delta Sod sells river sand with the following description:

"Pumped river sand can be used to fill and grade everything from your commercial job site to your own backyard. Our pumped river sand comes directly from the Mississippi River by way of dredge barge and it should not be confused with material known as spillway dirt which is more likely to contain seeds, bulbs or bits of rhizomes of weeds, such as Nutsedge, Dollarweed and Torpedograss."

I've heard that Masonry sand is the way to go though and that river sand has weeds. What do i need to know about buying sand?

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According to Dan Gill, retired consumer horticulturist With the LSU AgCenter, that hosts a gardening radio program Sat AMs on WWL 870, supposedly spillway “dirt” soil from the Barre Carrie Spillway has been the problem source of torpedograss contaminated fill dirt. River sand/silt from the Miss River is not supposed to be an issue with regards to torpedograss contamination, but certainly it’s going to contain “weed” seeds of variously sorts. No fill dirt/sand collected from river systems is going to be weed free unless sterilized, and of course that is not done in bulk.

I don’t have torpedograss, but we’ve all read the horror stories of those that do on this board. I’m paranoid about taking any chance, and why I lean towards suggesting concrete sand or mason sand, and it what I now buy when filling in low spots - in fact I need to buy a yard of it this week. Here is a little primer on sand types LINK. I think you can see mason sand being made from crushed rock is going to have a minimal amount of weed seed, but it not going to have nutrient rich mineral soil containing clay and silt that river silt contains. But you already have plenty of nutrient rich soil in your existing Orleans yard.

This is my take on it, and personally I’d err on the side of mason sand knowing it’s torpedograss free - other weeds don’t bother me as they can be controlled - but then why deal with it if mason sand is an effective alternative to fill in low spots. If having to grade and fill an entire yard, followed by laying sod on top then I might consider river silt, i.e., pumped sand, provided I knew it wasn’t sourced from the Bonne Carrie Spillway.

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I’ve never seen sethoxydim recommended for control of Dallisgrass, though Boo says it works for him

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Works like a charm. I wish there was something similar for st aug . I’ve sprayed some pretty heavy doses in the past and it has no impact on the centipede at all.